Improved torpedo for oil-wells



' ment,

UNITED STATES PATENT OFFICE.

i EDWARD A. L. ROBERTS, OF TITUSVILLE, PENNSYLVANIA.

lMrRovEo ToRPjEDo FoR lL-wELLs.

Specification forming part of Letters-Patent No. 62,890, dated March 12, 1867.

pedo, and for the purpose of exploding nitroglycerine it is essential tov generate Yheat in or around the same at the moment of the concussion Now, be it known. that I, EDWARD A.l L'. ROBERTS, of Titusville, in the county of Crawford, State'of Pennsylvania, have invented an Improvement on my Method of Increasing the Capacity of Oil-Wells by the Torpedo, Patent No. 59,936; and I do hereby declare that the following isa full and exact description of the same, reference being had to the accompanyingl drawings, and marked thereon. l

Figure 1 is a sectional view of my improvedivided longitudinally to better'showV its internal construction. Y f

A A isa shell of iron or othermetal of the desired 1ength,witha screw-plug, B, toclose the lower end, with a similar one, C', toi-close the top. v D is a'bail; E, aA hammer to explode the letters of reference the cap,

which is placed on the tube S. So farthe construction is similar to my former invention, described in Patent No. 59,936, as is also the priming-chamber F.

The nature of my improvement is as follows, to Wit: M is a cylinder, of tin or other material, filled with powder. H H is a quick-match or fuse, bent in the form represented, or may be constructed in the-form of net-work. The ends of vthis fuse pass through a cork, G,`in the priming-chamber F, and are fired from the priming-chamber F. The space R R between the powder-cylinder M and the shell of the torpedo A A is illed with nitro-glycerine.

`N ow, it is evident that this construction will insure theinstantaneous ignition of the powder in M and the nitro-glycerne in R R, thus making a torpedo of most fearful power.

What I claim as my invention, 'and desire to securebyLetters Patent, is as follows, to

1. The combination of the quick-match F. 

